diff -wur busybox-1.11.0/include/usage.h busybox-1.11.0-patched/include/usage.h
--- busybox-1.11.0/include/usage.h	2008-06-25 14:51:35.000000000 +0200
+++ busybox-1.11.0-patched/include/usage.h	2008-07-10 17:45:38.000000000 +0200
@@ -563,12 +563,23 @@
      "\n	FILE	Replace crontab by FILE ('-': stdin)" \
 
 #define cryptpw_trivial_usage \
-       "[-a des|md5] [string]"
+     USE_FEATURE_CRYPTPW_BLOWFISH( \
+          "[-a des|md5|blowfish] [string]" \
+     ) \
+     SKIP_FEATURE_CRYPTPW_BLOWFISH( \
+          "[-a des|md5] [string]" \
+     )
 #define cryptpw_full_usage "\n\n" \
        "Output crypted string.\n" \
        "If string isn't supplied on cmdline, read it from stdin.\n" \
      "\nOptions:" \
      "\n	-a	Algorithm to use (default: md5)" \
+     "\n        Available algorithms:" \
+     USE_FEATURE_CRYPTPW_BLOWFISH( \
+        "\n           blowfish" \
+     ) \
+        "\n           des" \
+        "\n           md5"
 
 #define cttyhack_trivial_usage NOUSAGE_STR
 #define cttyhack_full_usage ""
diff -wur busybox-1.11.0/loginutils/Config.in busybox-1.11.0-patched/loginutils/Config.in
--- busybox-1.11.0/loginutils/Config.in	2008-06-25 14:51:35.000000000 +0200
+++ busybox-1.11.0-patched/loginutils/Config.in	2008-07-10 17:46:59.000000000 +0200
@@ -232,6 +232,13 @@
 	help
 	  Applet for crypting a string.
 
+config FEATURE_CRYPTPW_BLOWFISH 
+    bool "Support blowfish in cryptpw"
+    default y
+    depends on CRYPTPW
+    help
+      With this option cryptpw will support the blowfish cipher, too.
+
 config CHPASSWD
        bool "chpasswd"
        default n
diff -wur busybox-1.11.0/loginutils/cryptpw.c busybox-1.11.0-patched/loginutils/cryptpw.c
--- busybox-1.11.0/loginutils/cryptpw.c	2008-06-25 14:51:35.000000000 +0200
+++ busybox-1.11.0-patched/loginutils/cryptpw.c	2008-07-10 17:49:58.000000000 +0200
@@ -34,19 +34,28 @@
 int cryptpw_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 int cryptpw_main(int argc ATTRIBUTE_UNUSED, char **argv)
 {
-	char salt[sizeof("$N$XXXXXXXX")];
+    char salt[sizeof("$2a$10$1234567890123456789012X")];
 	char *opt_a;
 
-	if (!getopt32(argv, "a:", &opt_a) || opt_a[0] != 'd') {
+    if (!getopt32(argv, "a:", NULL)
+    || (argv[optind - 1][0] != 'b' && argv[optind - 1][0] != 'd')) {
+        /* md5 */
 		salt[0] = '$';
 		salt[1] = '1';
 		salt[2] = '$';
 		crypt_make_salt(salt + 3, 4, 0); /* md5 */
+#if ENABLE_FEATURE_CRYPTPW_BLOWFISH
+    } else if (argv[optind - 1][0] == 'b') {
+        /* blowfish */
+        strcpy(salt, "$2a$10$");
+        crypt_make_salt(salt + 7, 11, 0);
+#endif 
 #if TESTING
 		strcpy(salt + 3, "ajg./bcf");
 #endif
 	} else {
-		crypt_make_salt(salt, 1, 0);     /* des */
+		/* des */
+		crypt_make_salt(salt, 1, 0);
 #if TESTING
 		strcpy(salt, "a.");
 #endif